function set_check_box_status(form,status)
{
	for (i = 0, n = form.elements.length; i < n; i++) {
		if(form.elements[i].type == "checkbox") 
		{
			if(status==false)
				form.elements[i].checked = false;
			else if(status==true)
				form.elements[i].checked = true;
			else
			{
				if(form.elements[i].checked == true )
					form.elements[i].checked = false;
				else if(form.elements[i].checked == false)
					form.elements[i].checked = true;
			}
		}
	}
}

function getIndexByValue(strFieldName,strValue)
{
	 objFormField=document.ff.elements[strFieldName]
	 for(i=0;i<objFormField.options.length;i++)
	 {
		  if(objFormField.options[i].value==strValue)
		  {
			   objFormField.selectedIndex = i;
			   break;
		  }
 	}
	return objFormField.selectedIndex;
}
function change(id,status)
{
	if(status==true)
	{
		document.getElementById('div_'+id).style.visibility="visible";
		document.getElementById('div_'+id).style.display="";
	}
	else
	{
		document.getElementById('div_'+id).style.visibility="hidden";
		document.getElementById('div_'+id).style.display="none";
	}
}

function disable_form(form_name) 
{
	var limit = form_name.elements.length;
	for (i=0;i<limit;i++) 
	  form_name.elements[i].disabled = true;
}